Cushion-tire



unire sraans rnrnnr ernten CYRU SYLVESTOR YVERT, 0F KENDALLVILLE, INDIANA.

CUSHION-TIRE.

Application nient .april 25, 1918.

To all whom it may concern:

Be it known that l, Crans S. l/Vnn'r, a citizen of United Sta and a resident of Kendallville, in the county of lloble and State of a, have invented certain new and useiul nprovenients v in Cushion-Tires, of which the following is a specification. 4

lli/ly invention relates to improvements in cushion tires, and it consists in the constructions, combinations and arrangements herein described and claimed.

an object of my invention is to provide a cushion tire including as one of the iniportant features, plurality of resiliently supported shoes arranged to occupy and engage the inside of the tire casing d taire the place of the compressed air ordinarily employed to hold the tire in shape.

Another object of the invention is to provide a cushion tire in which the cushion members occupy only thatA space between the folly of the wheel and the interior surface of the tire casing, the cushion members including a plurality of spring supported shoes with a ring' surrounding the felly and providing a mounting` for the springs.

Other objects and advantages will appear in the following specification, reference being had to the accompanying drawing, in which:

'Figure 1 is an elevation of a vehicle wheel with parts shown in section,

Fig. 2 is a detail perspective view of one of the cushion shoes, the various coperating parts thereof being shown in disassembled relationship therewith,

Fig. 3 is a cross section on the line 3-3 of Fig. 1, and

Fig. a is a cross section through one of the cushion shoes.

In the present instance, the invention is embodied in a clencher tire casing` 1 which is mounted on a modern type of quick-detachable dcnountable rim 2, as clearly shown' in Fig. 8. The rim 2 includes the clencher rings 8 and l which engage the beads 5 of the casing 1 in the usual manner. A locking ring 6 in the annular trough 7 of the rim 2, engages the outer one l of the clencher rings and holds the tire casing in place on the wheel.

To assemble the cushion shoes and the cooperating parts thereof on a vehicle wheel of the modern construction just described, is a comparatively simple matter, as will pres- Specicaton of Letters atent.

Serial No. 230,72.

ently be more fully explained. 1n this instance, the parts can be readily slipped over the rim 2 from one side with comparative ease. rThe assembling of the cushion members inside of the tire casing, is a thing very easily and quickly done when the simple process hereinafter to be explained, is carried out.

llllroceeding new with the description of the invention, it will be observed that an iron ring S is fitted in place around the rim 2 on the felly 9 of the vehicle wheel 10. rlhe ring 8 has no other means for holding it in place other than the friction between the ring' and the rim 2, and the 'pressure of the springs, described below, thereon. This rim 2 is mounted on the felly of the wheel before the ring 8 is put in place thereon. The ring` 8V has thirty-six equi-distantly spaced holes 11 into which the heads 12 of the spindles 13 are screwed from the inside.

rlhe threaded heads 12 have notches or grooves to receive the point of a screwdriver so that the heads may be driven flush with the inner surface of the ring 8. il. lock nut 14 which in the present instance is in the shape of a ring, is applied to the threaded head 12 and serves to lock the spindle 13 in position. The lock nut 14 also provides a base for the reduced end of the cushion springs 15.

Supported on each of the cushion springs 15 is a shoe 16. There are thirty-six of the shoes 16 on the inside of the tire casing 1, but obviously the number of the shoes 16 may be increased and diminished according to the size of the tire to which the invention is applied. Since each of the shoes 16 and its cooperating` parts is of an identical construction, the description of one will suiiice for all.

Molded in the flat basel? on the inside of the shoe 16., is a washer 18 which provides a support for the other and larger end of the cushion spring 15. The washer 18 has a plurality of dowel pins 19 which are embedded in the material of the shoe 16 and serve to hold the washer firmly in position. lt should be observed that the ends of the cushion spring 15 are made flat so as to more readilyengage the surfaces of the washer and the lock nut.

Extending inwardly from the HatV base 17 of the shoe 16 is a hollow boss 20. The boss 20 has a sleeve 22 on the outside and a bushing 21 on the inside. The sleeve 22 prousually employed in mechanical constructions of this nature, are found to be unsuitable tor the purpose in that there is a limit tothe bending` thereot7 and they also have the obcrystallized Bubjectionable :teatures et becoming` and brealnniaifter considerable use. ber, which as before stated has b e heres very lirmly to the contacting sin oit the tire casing; 1 and the cus non spring 15 bears the cushion 1G so tightly into engagenient that there is no creepingv or the shoe with respect to the tire casing.

Attention is directed to the construction et the rubber transverse edges are prei beats Q3 which are primar strengthen the shoe and the semi-circular shape thereof. 23 is molded with a slight o shoivn in Figi". l. lWhen all o are assembled on the inside there is a slight space t3 between adjacent shoes as shown in 1. practice, the shoes are not intended to normally be in contact. l-loivever, it tor any reason the contact between the slices docs ir all lateral offsets 211 of the shoes (shoivn in S'Tie'. f2) l Y K kge, and not the entire opposed surfaces o; the beads Q3.

Beter-ence has been made to the assemblingot' the cushion shoes on the telly ot the Wheel. lt has been explained that to apply the intention to the modern t e oil? demountable rim illustrated in a paratively simple matter'. Y ion shoes are once assemblee on the 8 on the inside ot the tire casino'. 19 tire structure is simply el" p el 2 troni the unobstructed 'Y in position bv the moans 3. rdi'narily, the more friction.., ment oi' the rino' tl with the rim sutlicicnt to hold the ring;v but the many springs 15 disposed about the ivheel press hard on the rino; tl] that the ringY ivill securely ,Qrip the rim But applying the assembled structure to the eid style rim wherein the clencher members are integral on both si des., the clencher rim must be lirst contracted in order that it may be iitted on peca i .de ot the tire casing 1. The manner oi assembling the slices on the inside ot the tire casing 1 will noiv be explained.

The tire casing 1 is laid across a pair of trestles and the iron rino' 8 is temporarily supported in place by the hands or some other n eans until several ot' the shoes may be iitted in place at various positions around the circumference so as to approximately establish the position ol the ring. il short stick is new used as a spreader and is placed between the beads to hold the edges apart. all., shoe 16 with the cushion princeassembled in place thereon, is nserted in the spread place7 a spindle 13 inserted in the tl readed hole 11 trom the inside ot the ring` t3 and is scrived outivarc ly into position. lletore screwing the spindle 13 into position, hoiveiferq a lock nut 111 is inserted over the end of the spindle beneath the reduced end oit the spring 15 and att-er the spindle has been screwed te its position, the lock nut is in turn screwed doivn upon the ring by any table wrench. 'lhe same proces just del, bed is repeated for each ot the shoes 16 until all are in position and the operation ot assembling; the shoes for a single tire by an experienced Wonnnan consumes no more than approximately 28 minutes.

Numerous advantages are derived from a cushion tire constructed on the lines herein described. Une oi? the foremost advantages is, the complete avoidance of the great inconvenience occasioned by a blowout at a most inopportuno time. rl`his is a trouble that is to be constantly anticipated in a pneumatic tire. ld/Then a set ot the cushion shoes 1G is once installed inside of thetire casing, no 'further attention need be given the tire so 'tar as the operation et the cushion members on the inside is concerned. Vthe :trictienal engagement between the iron ring 8 and the rim 2 of the Wheel, is so great that there is absolute security and no possibility ot creeping between the parts. rthis trictional engagement is partly inherent in the ringl but is further produced by 'the pressure of the springs 15, as stated above. 'll he tension of the cushion springs 15 may be so regulated that the ditterence between the f echanical cushioning; means herein described ano the pneumatic cushioning means in the ordinary tire cannot be perceived by an occupant ot the car to which tires ot this type are applied.

lllhile the construction and arrangement or the deriee as herein described is that of a generally preferred term, obviously modiiications and changes may be made Without departing,- trom the spirit ot the invention or the scope ot the claims,

ll claim z- 1. lthe combination in a tire, of a series ot casing' engaging resilient sections, a rim engaging ring, a single guide spindle extending from the ring for each section, including spindle mounting means, arranged to enable introduction of the spindle from the inside of the ring, and locking means therefor; and individual springs bearing on said locking means and supporting said sections independently.

2. A tire, comprising a casing, a series of resilient sections extending in circumferential series around the casing and provided each with an integral inwardly projecting tubular boss., sies-thing means on the inside and outside of said boss, a spring supporting each section independently and fitting at he outer end around said boss7 a ring, a spindle projecting from the ring through each spring and inte the boss to forni a guide, including a threaded portion secured iirthe ring; and locking means thereon for said spindle providing a base iter said spring.

8. ln a tire, a casing, a series or' resilient sections within the casing, an integral hollow boss projecting inwardly from each section, a spring surrounding the boss at one end, means embedded in each section at the base et' the boss tor receiving said end of the spring, a spindle proj ecting inte the boss a d forming a guideql and means on the outside and inside ot the tubular bess providing a sheathfor the boss against the spring and the spindle respectively. l

l. in a tire, a casing, a ring, a series of resilient sections within the casing, a hollow boss projecting inwardly from each section, a dat base termed on the section at the point et connection egt the hollow bess, a washer embedded flush with the flat base and having means `tor holding it in place, a spindle rer each o1 the sections projecting outwardly troni the ring, each spindle having a threaded head screwed into the ring, a leclr nut on the threaded head providingspring base, a cushion spring surrounding the spindle and the hollow boss, engaging the embedded washer and the leclr nut at the outer and inner ends respectively, and means including a sleeve and a bushing providing a sheath for the outside and inside of the hollow boss. i

5. ln a tire, a casing, a series of resilient sections within the casing and extending circumiierentially around the same and in normali spaced au art relationshibeads CYRUS SYLVESTOR YVERT. 

